Volume I of the Fish Index of Biotic Integrity (IBI) Report contains the executive summary and report narrative. Sampling described in this report was conducted in Northern New Jersey, including all portions of the Upper Delaware, Raritan and Passaic-Hackensack major drainage basins.

Volume 2 of the Fish IBI Report is the companion volume to Volume 1. Included in Volume 2 are individual site location maps, along with site specific aerial photography, habitat assessment sheets, site scoring sheets, and total number of fish species found, along with photographs of each.

Volume 2 is intended for those wanting more site specific details of each site than is provided in Volume 1.